The municipality has a land area of 194.90 square kilometers or 75.25 square miles which constitutes 4.33% of Zamboanga del Sur's total area. Its population as determined by the 2015 Census was 46,516. This represented 4.60% of the total population of Zamboanga del Sur province, or 1.28% of the overall population of the Zamboanga Peninsula region. Based on these figures, the population density is computed at 239 inhabitants per square kilometer or 618 inhabitants per square mile.

Demographics

Population by age group

According to the 2015 Census, the age group with the highest population in Mahayag is 5 to 9, with 5,534 individuals. Conversely, the age group with the lowest population is 80 and over, with 409 individuals.

details

Age group

Population (2015)

Under 1

1,037

1 to 4

4,427

5 to 9

5,534

10 to 14

5,291

15 to 19

4,861

20 to 24

4,172

25 to 29

3,380

30 to 34

2,788

35 to 39

2,619

40 to 44

2,484

45 to 49

2,219

50 to 54

2,127

55 to 59

1,743

60 to 64

1,393

65 to 69

976

70 to 74

625

75 to 79

431

80 and over

409

Total

46,516

Historical population

The population of Mahayag grew from 22,493 in 1970 to 46,516 in 2015, an increase of 24,023 people. The latest census figures in 2015 denote a positive growth rate of 0.63%, or an increase of 1,501 people, from the previous population of 45,015 in 2010.

details

Census date

Population

Growth rate

1960 Feb 15

–

–

1970 May 6

22,493

–

1975 May 1

25,305

2.39%

1980 May 1

29,692

3.25%

1990 May 1

37,690

2.41%

1995 Sep 1

40,806

1.50%

2000 May 1

42,462

0.86%

2007 Aug 1

44,087

0.52%

2010 May 1

45,015

0.76%

2015 Aug 1

46,516

0.63%

Location

The municipal center of Mahayag is situated at approximately 8° 8' North, 123° 26' East, in the island of Mindanao. Elevation at these coordinates is estimated at 41.0 meters or 134.5 feet above mean sea level.